Tagtraum Industries (http://tinyurl.com/p36nk5v) has launched beaTunes 4.5, a new version of their music library management utility for Mac OS X and Windows.

The app is designed to fix fixing ID3 tags and automatically calculate musical key and tempo. Version 4.5 features an attractive new user interface designed to mesh with the Yosemite and El Capitan aesthetic. Side and status bars can now be hidden. Top-level user interface selectors (Library, Inspection, etc.) are located at the left edge of the application window, in order to remove visual clutter. And there are keyboard shortcuts for all top-level panes.

With beaTunes 4.5, copying a song from the Matching Songs panel to the current playlist is now also possible via a dedicated button, instead of having to rely on drag and drop. The upgrade adds the ability to write keys into the comment field using one of multiple built-in formats (others can be added via a plugin interface). In the key tag itself, beaTunes can now write either ID3 or Open Key data, maximizing interoperability with other apps using non-proprietary formats.

beaTunes 4.5 now allows choosing between album and track gain when updating iTunes' proprietary iTunNORM tag. The upgrade adds a new inspector for missing track counts. Other inspectors were updated with additional issue solutions.

beaTunes 4.5 requires Mac OS X 10.7.5 or higher. It costs US$34.95. For beaTunes 4.0 users the upgrade is free. A 14-day demo is available for download.